upgrade pg_trgm from 1.1 to 1.3

db/migrate/20200622135401_add_pg_search_dmetaphone_support_functions.rb

@@ -2,9 +2,10 @@
 
 # Create a PostgreSQL specific function to make pg_search gem working with fuzzystrmatch
 class AddPgSearchDmetaphoneSupportFunctions < ActiveRecord::Migration[5.2]
+  # PostgreSQL only
   def self.up
     say_with_time('Adding support functions for pg_search :dmetaphone') do
-      execute 'CREATE EXTENSION IF NOT EXISTS fuzzystrmatch;'
+      execute 'CREATE EXTENSION IF NOT EXISTS fuzzystrmatch SCHEMA public;'
       execute <<~'SQL'
         CREATE OR REPLACE FUNCTION pg_search_dmetaphone(text) RETURNS text LANGUAGE SQL IMMUTABLE STRICT AS $function$
           SELECT array_to_string(ARRAY(SELECT dmetaphone(unnest(regexp_split_to_array($1, E'\\s+')))), ' ')

db/migrate/20200623134900_add_search_vector_to_project.rb

@@ -2,6 +2,7 @@
 
 # Index for full-text search in projects
 class AddSearchVectorToProject < ActiveRecord::Migration[5.2]
+  # PostgreSQL only
   def self.up
     add_column :projects, :search_vector, :tsvector
 

db/migrate/20200623141305_update_search_vector_of_projects.rb

@@ -3,6 +3,7 @@
 # Create a PL/pgSQL function and trigger it on records update.
 # This function will update the Project::search_vector according to the saved project
 class UpdateSearchVectorOfProjects < ActiveRecord::Migration[5.2]
+  # PostgreSQL only
   def up
     execute <<-SQL
       CREATE OR REPLACE FUNCTION fill_search_vector_for_project() RETURNS trigger LANGUAGE plpgsql AS $$

db/migrate/20200629123011_update_pg_trgm.rb

@@ -0,0 +1,21 @@
+# frozen_string_literal: true
+
+# Recreate the pg_trgm extension to upgrade from v1.1 to v1.3
+# This will enable the function word_similarity(text, text) for the project's full-text searches
+class UpdatePgTrgm < ActiveRecord::Migration[5.2]
+  # PostgreSQL only
+  def change
+    say_with_time('Upgrade extension :pg_trgm') do
+      execute <<~SQL
+        DROP INDEX profiles_lower_unaccent_first_name_trgm_idx;
+        DROP INDEX profiles_lower_unaccent_last_name_trgm_idx;
+        DROP EXTENSION pg_trgm;
+        CREATE EXTENSION IF NOT EXISTS pg_trgm;
+        CREATE INDEX profiles_lower_unaccent_first_name_trgm_idx ON profiles
+             USING gin (lower(f_unaccent(first_name)) gin_trgm_ops);
+        CREATE INDEX profiles_lower_unaccent_last_name_trgm_idx ON profiles
+             USING gin (lower(f_unaccent(last_name)) gin_trgm_ops);
+      SQL
+    end
+  end
+end

db/structure.sql

@@ -5616,6 +5616,8 @@ INSERT INTO "schema_migrations" (version) VALUES
 ('20200511075933'),
 ('20200622135401'),
 ('20200623134900'),
-('20200623141305');
+('20200623141305'),
+('20200629114319'),
+('20200629123011');